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Fabrication of Carbon Nanotube Strain Sensors

카본나노튜브 스트레인 센서 제작 기술

  • 장원석 (한국기계연구원, 나노융합기계연구본부) ;
  • 송선아 (한국기계연구원, 나노융합기계연구본부) ;
  • 김재현 (한국기계연구원, 나노융합기계연구본부) ;
  • 한창수 (한국기계연구원, 나노융합기계연구본부)
  • Published : 2009.10.01

Abstract

In this study, the strain sensing characteristics of single-wall carbon nanotubes(SWCNTs) networks were investigated to develop a film sensor for strain sensing. The SWCNTs film are formed on flexible substrates of poly(ethylene terephthalate) (PET) using spray process. In this manner we could control the transparency and obtain excellent uniformity of the networked SWCNT film. The carbon nanotube film is isotropic due to randomly oriented bundles of SWCNTs. Using experimental results it is shown that there is a nearly linear change in resistance across the film when it is subjected to tensile stress. The results presented in this study indicate the potential of such films for high sensitive transparent strain sensors on macro scale.

Keywords

References

  1. Zhao, Q., Wood, J. R. and Wagner, H. D., 2001, 'Stress Fields around Defects and Fibers in a Polymer Using Carbon Nanotubes as Sensors,' Appl. Phys. Lett. Vol. 78, pp. 1748-1750 https://doi.org/10.1063/1.1357209
  2. Hadjiev, V. G., Lliev, M. N., Arepalli, S., Nikolaev, P. and Files, B. S., 2001, 'Raman Scattering Test of Single Wall Carbon Nanotube Composites,' Appl. Phys. Lett. Vol. 78, pp. 3193-3195 https://doi.org/10.1063/1.1373405
  3. Dharap, P., Li, Z. L., Nagarajaiah, S. and Barrera, E. V., 2004, 'Nanotube Film Based on Single Wall Carbon Nanotubes for Strain Sensing,' Nanotechnology Vol. 15, pp. 379- 382 https://doi.org/10.1088/0957-4484/15/3/026

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  1. A Spray-On Carbon Nanotube Artificial Neuron Strain Sensor for Composite Structural Health Monitoring vol.16, pp.8, 2016, https://doi.org/10.3390/s16081171